A delay-less signal processing arrangement for use in an atm network

(19)

(11)

EP 0 664 657 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	27.08.1997 Bulletin 1997/35

(43)	Date of publication A2:
	26.07.1995 Bulletin 1995/30

(21)	Application number: 94308923.5

(22)	Date of filing: 01.12.1994

(51)	International Patent Classification (IPC)⁶: H04Q 11/04, H04L 12/56

(84)	Designated Contracting States:
	DE ES FR GB IT NL SE

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Priority:

21.12.1993 US 171310

(71)	Applicant: AT&T Corp.
	New York, NY 10013-2412 (US)

(72)	Inventors:
	Bharucha, Behram H. Millburn, New Jersey 07041 (US) Gritton, Charles William Kevin North Brunswick, New Jersey 08902 (US) Parola, Dario Livio Matawan, New Jersey 07747 (US) Zoccolillo, Richard Holmdel, New Jersey 07733 (US)

(74)	Representative: Buckley, Christopher Simon Thirsk et al
	AT&T (UK) LTD., AT&T Intellectual Property Division, 5 Mornington Road Woodford Green, Essex IG8 0TU Woodford Green, Essex IG8 0TU (GB)

(54)	A delay-less signal processing arrangement for use in an atm network

(57) An ATM cell (e.g. on 302-2) carrying a voice-band signal originating in an STM network (200 fed by S2) is processed in accordance with a particular signal processing function, e.g. echo cancellation, in an ATM mode (305) at an ATM data rate without incurring a delay penalty that arises.

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